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Understand How to Use Keys for Identification

In this worksheet, students will be helped to practise their work on keys, using features to identify an object or living thing. Both spider keys and clue keys are practised.

'Understand How to Use Keys for Identification' worksheet

Key stage:  KS 2

Year:  Year 4 Science worksheets

Curriculum topic:   Living Things and Their Habitats

Curriculum subtopic:   Classification Keys

Popular topics:   Biology worksheets, Biology old worksheets

Difficulty level:  

Worksheet Overview

 Keys are used to help to identify something. They are really useful when studying habitats as there are so many plants and animals that students (and teachers!) don't know the name of - keys help us to find out the name of the organism.


There are two main sorts of keys:


Spider keys use a branching system like this:


pink rose


Clue keys use clues to help find the name, like this:


Clue 1 If the flower is yellow go to Clue 2
  If the flower is not yellow  go to Clue 4


and so on.


a daffodil


In the following questions, we will use keys to try to identify something.

We will also find the name of something using clues given in the key.


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